He got there 'with (only) minutes/seconds to spare'. [=he got there only minutes/seconds before he needed to; he got there just in time]
When they go on vacation, they 'spare no expense'. [=they do not worry about spending too much money; they spend a lot of money]
He said that he would 'spare no expense' [=he would spend as much money as necessary] to make the restaurant successful.
(..) You can't. I'm the lead author. Come on, the only reason you're the lead author is because we went alphabetically. I let you think we went alphabetically... ...to spare you dealing with the fact that it was my idea. Not to put too fine a point on it, but I was throwing you a bone. You're welcome. (..)2008 TvShow: The Big Bang Theory Title: The Cooper-Hofstadter Polarization Season: 1 Episode 9